Title:
LOUDSPEAKER DIAPHRAGM AND LOUDSPEAKER
Document Type and Number:
WIPO Patent Application WO/2019/237606
Kind Code:
A1
Abstract:
A loudspeaker diaphragm and a loudspeaker. The loudspeaker diaphragm comprises a thermoplastic polyester elastomer film layer (11), the thermoplastic polyester elastomer being a copolymer composed of a polyester hard segment A and a polyether or an aliphatic polyester soft segment B, wherein the vitrification transformation temperature of the thermoplastic polyester elastomer film layer (11) ≤20℃, while the thermal plasticity temperature is 50℃-200℃. Using the described thermoplastic polyester elastomer film layer enables a loudspeaker diaphragm to have good flexibility, while being highly reliable and being durable, thus increasing the damage resistance capabilities of a loudspeaker.
Inventors:
WANG TING (CN)
ZHAO GUODONG (CN)
ZHU JIE (CN)
LI CHUN (CN)
LIU CHUNFA (CN)
ZHAO GUODONG (CN)
ZHU JIE (CN)
LI CHUN (CN)
LIU CHUNFA (CN)
Application Number:
PCT/CN2018/110165
Publication Date:
December 19, 2019
Filing Date:
October 13, 2018
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
H04R7/10; B32B7/12; B32B27/08; B32B27/36; B32B33/00; H04R9/02; H04R9/06
Foreign References:
CN105188000A | 2015-12-23 | |||
CN105188000A | 2015-12-23 | |||
CN202652511U | 2013-01-02 | |||
CN108551640A | 2018-09-18 | |||
CN108551641A | 2018-09-18 | |||
CN108551642A | 2018-09-18 | |||
CN108551643A | 2018-09-18 | |||
CN108566608A | 2018-09-21 | |||
CN108668205A | 2018-10-16 | |||
CN108966088A | 2018-12-07 | |||
CN109005487A | 2018-12-14 | |||
EP0360061A2 | 1990-03-28 | |||
US20130259291A1 | 2013-10-03 |
Other References:
See also references of EP 3809715A4
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